* {
    padding: 0;
    margin: 0;
}

.adver {
    width: 300px;
    /* height: 400px; */
    background-color: aquamarine;
    /* display: none; */
    /* display: block; */
}

.adver-header {
    overflow: hidden;
    line-height: 20px;
    font-size: 13px;
    padding: 0 5px;
}

.adver-header .adver-title {
    float: left;
}

.adver-header .adver-close {
    float: right;
}

.adver-main img {
    width: 100%;
}